6:48 p.m.
Hi,
The engine will monitor that host. Once it's reachable and we can get
information from it the status will change accordingly.
Please check out the HostMonitoring class.
On Thu, Nov 5, 2020 at 11:57 AM lifuqiong(a)sunyainfo.com <
lifuqiong(a)sunyainfo.com> wrote:
Hi,
I checkout ovirt-engine's code with branch 4.2; When execute Host's
Management --> Active command, ovirt engine just set vds's status to
"Unassigned" but how the vds's status changed to "UP" in
ovirt-engine? The
code in ActiveVdsCommand.executeCommand() as follows:
protected void executeCommand() {
final VDS vds = getVds();
try (EngineLock monitoringLock = acquireMonitorLock("Activate
host")) {
executionHandler.updateSpecificActionJobCompleted(vds.getId(),
ActionType.MaintenanceVds, false);
setSucceeded(setVdsStatus(VDSStatus.Unassigned).getSucceeded());
if (getSucceeded()) {
TransactionSupport.executeInNewTransaction(() -> {
// set network to operational / non-operational
List<Network> networks =
networkDao.getAllForCluster(vds.getClusterId());
networkClusterHelper.setStatus(vds.getClusterId(),
networks);
return null;
});
// Start glusterd service on the node, which would haven
been stopped due to maintenance
if (vds.getClusterSupportsGlusterService()) {
runVdsCommand(VDSCommandType.ManageGlusterService,
new GlusterServiceVDSParameters(vds.getId(),
Arrays.asList("glusterd"), "restart"));
// starting vdo service
GlusterStatus isRunning =
glusterUtil.isVDORunning(vds.getId());
switch (isRunning) {
case DOWN:
log.info("VDO service is down in host : '{}' with
id '{}', starting VDO service",
vds.getHostName(),
vds.getId());
startVDOService(vds);
break;
case UP:
log.info("VDO service is up in host : '{}' with
id '{}', skipping starting of VDO service",
vds.getHostName(),
vds.getId());
break;
case UNKNOWN:
log.info("VDO service is not installed host :
'{}' with id '{}', ignoring to start VDO service",
vds.getHostName(),
vds.getId());
break;
}
}
}
}
}
Your Sincerely
Mark Lee
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